Gasolene-lamp.



PATENTED FEB. 21, 1905.

M. JAOKSDN. GASOLENB LAMP.

APPLIOATION FILED DEC.18, 1902.

INVENTOH.

W/TNESSES B) I W A2 A 770mm UNITED STATES Patented February 21, 1905.

PATENT OEEIcE.

MARTIN JACKSON, OF ST. LOUIS, MISSOURI, ASSIGNOR TO AMERICAN LIGHT & FIXTURE COMPANY, OF ST. LOUIS, MISSOURI, A CORPO- RATION OF MISSOURI.

GASOLENE-LAMP.

SPECIFICATION forming part of Letters Patent No. 783,042, dated February 21, 1905.

Application filed December 18, 1902. Serial No. 135,830.

To all whom it may concern.-

Be it known that I, MARTIN J ACKSON, a citizen of the United States, residing at St. Louis, Missouri, have invented a new and useful Improvement in Gasolene-Lamps, of which the following is a specification.

This invention relates to an improved means for supplying gasolene to the generator for a gasolene-lamp or other structure and also to means for more conveniently changing the chimney or other similar parts of a gasolene lamp or burner.

In the drawings, in which like numbers of reference refer to like parts wherever they occur, Figure l'is a front elevation of my device, showing the means of gasolene-supply and the lamp in its relation to the generator and the chimney in position. Fig. 2 is a side elevation of the same, showing the cock for governing the admission of gasolene to the generator. Fig. 3 is a sectional View through the generator-tube and connected parts, and Fig. 1 is a perspective view of the needlevalve and connected parts.

I have illustrated my invention in the form of a lamp, the frame-adapted to be suspended from suitable means of support by the hook 1,

formed on the end of a hanger 2, having a gasolene-supply pipe 3 entering thereinto. The frame, composed of the solid bent rod 4 and bent tubes 5, is united by the split tubular coupling 6 and braced by the coupling 7, having a passage therethrough, the entrance to which is approximately at right angles to the exit, and the similar coupling 8 on the opposite side having a three-way passage within it. The side 5 of the frame is tubular and conducts the gasolene downward, as shown by the arrows, until it reaches the lowest portion of the frame and then begins to ascend until it is stopped by the cock 9, which is located adjacent to the solid end of the side 4 of the frame. The tube 10 being located over the head of the lamp or burner constitutes the generator and has an end provided with a very small perforation 11 within the bell 12, which is slidingly mounted on the tube 10 by means of the short extension or tube 13. A needlevalve 14, operated by means of the rod 15 and thumb-nut 16, closes said perforation 11, which prevents the generated gas from leaving the generator-tube 10. The rod 15 is screw-threaded at 17, and this part engages with similar threads 18 within the coupling 7. The tube 10 may be formed, as shown in the drawings, Fig. 3, with a thimble 19, fitting over its end and containing the perforation 11, or the tube itself may be given that form and have the perforation mentioned in its end.

The cock 9 controls the admission of gasolene through the passage 20 in the coupling 7 to the generator-tube 10. The gasolene standing in the generatontube 10 is affected by the heat of the flame beneath it, which being immediately below it and in juxtaposition thereto prevents any loss of heat or possibility of non-generation, it being understood, of course, that this device belongs to the class known as top generators. After the gas has been generated in the tube 10 the thumb-nut 16 may be turned and theneedle-valve 14E drawn out of the perforation 11, so as to allow the gas to escape into the bell 12 and thence into the elbow 21, which connects with the gas-run 22, which conductsthe gas down underneath the lamp or burner in a manner which will be obvious from Fig. 1 of the drawings. The object of this construction is to lead the cold gasolene around so that it will approach the generator-tube from below, so that the heated gas will be above the cold gasolene, because if the cold gasolene, as is common, were conducted through a tube in place of the solid bent rod 1 it would be colder than the gas in the generator-tube 10 and the gas attempting to rise in the tube in place of the solid bent rod 4 would cause flickering in the lamp on account of the fluctuation in the supply of gas caused by the endeavor of the gas to escape upward in the supply-tube and allowing the cold gasolene to make its way downward into the generator-tube. In my construction the cold gasolene comes from below the generator-tube 10 and forms a body of cold fluid in the tube 23 against which the gas in the generator-tube does not endeavor to force its frame and having one end secured in the way downward, because of the fact that heated gas tends to rise rather than to descend. By this construction a strong, clear, and steady flame without flickering is obtained.

The gas-run 22 is swiveled or pivotally attached within the elbow 21 by any suitable means, so that when it is desired to put a new chimney, mantle, or shade over the burner 24 the gas-run 22 Will turn around in the elbow 21, carrying with it the lamp 24, which will in that way be turned outside of the frame and from underneath the generator-tube 10,which is a great advantage in the way of convenience, because it obviates the necessity of un screwing and removing the generator-tube 10.

It is obvious that many minor changes in the construction and arrangement of the several parts of my said invention may be made Without departing from the nature and spirit thereof.

Having thus described my said invention, what I claim, and desire to secure by Letters Patent, is-- 1. In a device of the type described, the combination of a hanger having a su1 ly-pipe entering the same, a coupling connected to the hanger and having two branches, a lampframe comprising in part a rod having one end secured in one of the branches of the coupling, a tube forming another part of said other branch of the coupling, a four-way coupling to which the other ends of said rod 1 and tube are connected, a coupling 8 interposed in said tube, an elbow carried by said coupling 8, a gas-run connected to said elbow, a burner mounted on said gas-run, a tube supported in the four-way coupling and lying above said burner, a bell carried on the free end of said tube within which the free end of the elbow is received, and means in the fourway coupling and said tube for controlling the quantity of gas discharged to the gas-run, substantially as described. I

2. In a device of the character described, the combination of a split coupling in communication with a gas-supply, a lamp-frame com prising a rod and a tube, the rod having one end secured in one branch of the coupling, and the tube having one end secured in the other branch of the coupling, a four-way coupling in which the other ends of said rod and tube are secured, an elbow supported from the tube, a gas-run connected to said elbow, a lamp carried by said gas-run, a tube connected to the four-way coupling and lying over the lamp, a thimble on the free end of said tube provided with a perforation, and a rod operating in the four-way coupling and tube and having a needle-valve engaging the perforation in said thimble for controlling the supply of gas to the said elbow.

MARTIN JACKSON. Witnesses CLINTON L. CALDWELL, Semen (i. WnLLs. 

